7.Legislative District Source: Records and Statistics Division, Commission on Elections (COMELEC): As of May 2013.

8. Population (as of May 1, 2010): a) Total Population Count by Region, Province, City/Municipality and Barangay as of May 1, 2010 ; b) Population of Highly Urbanized Cities (HUCs) are excluded in the total population of their respective provinces but are included in the regional total; and c) Population of barangays with boundary disputes are excluded in total population of their respective municipalities and cities but are included in the provincial and regional total. Source: 2010 Census of Population: National Statistics Office (NSO).